Interestingly, an analyst from Russia – which has been accused of secretly helping North Korea’s missile programme – suggested a nuclear attack on Yellowstone just two years ago.

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NUCLEAR ERUPTION: Kim Jong-un may launch a nuclear strike on the Yellowstone supervolcano

As the United Nations dithers, Kim’s rocket scientists have developed an ICBM that can fly up to 7,000 miles – more than enough to reach Yellowstone – and an H-bomb small enough to fit on it.

America’s military might and massive nuclear arsenal could easily overwhelm North Korea – making any launch a suicide mission.

But Kim may only need to fire one missile to wipe out the US completely.

Despite few people living in the Yellowstone National Park, any “super-eruption” would still kill 90,000 people in an initial explosion.

Explosive Volcano Eruptions

These are the explosive images of some of the worlds most astonishing volcanic eruptions. Spectacular snaps capture lava spewing down the side of Kilauea, ash spitting from craters and plumes of smoke rising thousands of feet in the air.

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The Asahi Shimbun via Getty Imag

Stunning photos as a dirty thunderstorm occurs over Mount Sakurajima as the volcano erupts violently in Japan

“An eruption would be the equivalent of 2,000 Mount St Helens”

David Meade

Up to 11 cubic miles of burning magma would run across the surrounding area.

The eruption would also fire ash 25 miles into the atmosphere – blotting out the sun and causing a nuclear winter.

A 10ft blanket of ash would cover the US for 1,000 miles in all directions.

Up to two-thirds of the US would be uninhabitable and Midwest farms would be covered – almost totally stopping food production.

In a chilling demonstration of what it could do to Yellowstone, the blast at the Punggye-ri Nuclear Test Site – just 72 miles from the volcano Mount Paektu – set off a massive 6.3-magnitude earthquake.

Interestingly, there was a mysterious second 4.1-magnitude earthquake at the site 8.5 minutes later.

This has baffled seismologists, but it may have been the collapse of a tunnel at the underground test site, on the slopes of Mount Mantap.

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HOLY: A North Korean soldier on Mount Paektu – which is considered Koreans' spiritual home

Mr Meade said: “The North Koreans used a concealment cavern and detonated a super bomb deep into Mount Mantap.

“How much more evidence do we need of their intentions?

“Seismologists speculate further that the secondary seismic event was an earthquake triggered by the test – a rock burst, which is a violent rock fracture around the many tunnels of the mountain.

“This is exactly the modus operandi I believe they are testing – a triggering of the Yellowstone supervolcano.

“They are testing to determine exactly what yield of nuclear weapon will be necessary to disrupt the rock cap over the Yellowstone Caldera.”

FORBIDDEN photos show the true North Korean army

While tourists are free to visit the secretive state as part of strictly controlled tour groups, they are told to never take photos of soldiers by their handlers. These images taken by photographer Eric Lafforgue show the truth behind North Korean military service: a life of hard physical labour with the perks of visits to the nation's capital

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ERIC LAFFORGUE/EXCLUSIVEPIX MEDI

Many soldiers are used as a labor force to compensate for the ineffective North Korean economy, so the army is not only about military organization.

North Korean vulcanologists have also been studying the volcano Mount Paektu – which they consider holy.

The communist regime could fire a nuke missile from space, from one of its giant submarines parked off California or from one of its two satellites orbiting the earth, Mr Meade warned.

Russian geopolitical analyst Konstantin Sivkov suggested such an attack just two years ago.